Commonly he did not keep things to himself, especially dislikes and condemnations. Upon most current events he had strong opinions, and he uttered them strongly. After a while he was silent in them, but if you tried him you found him in them still. He was tremendously worked up by a certain famous trial, as most of us were who lived in the time of it. He believed the accused guilty, but when we met some months after it was over, and I tempted him to speak his mind upon it, he would only say. The man had suffered enough; as if the man had expiated his wrong, and he was not going to do anything to renew his penalty. I found that very curious, very delicate. His continued blame could not come to the sufferer’s knowledge, but he felt it his duty to forbear it.
He was apt to wear himself out in the vehemence of his resentments; or, he had so spent himself in uttering them that he had literally nothing more to say. You could offer Clemens offences that would anger other men and he did not mind; he would account for them from human nature; but if he thought you had in any way played him false you were anathema and maranatha forever. Yet not forever, perhaps, for by and-by, after years, he would be silent. There were two men, half a generation apart in their succession, whom he thought equally atrocious in their treason to him, and of whom he used to talk terrifyingly, even after they were out of the world. He went farther than Heine, who said that he forgave his enemies, but not till they were dead. Clemens did not forgive his dead enemies; their death seemed to deepen their crimes, like a base evasion, or a cowardly attempt